Heated Seat Problems

ScooterInMN · May 17, 2009

I have an '05 with the leather heated seats. I have noticed an intermittent problem with the passenger seats heat not coming on. Anyone have any ideas or where to start looking?

Bostonsfavson · May 17, 2009

Fuse, under-seat wiring harness.

bill190 · May 17, 2009

Unplug the connector at the seat and monitor it with a multimeter to see if it is getting constant power or not.

If it is, then check the connector and seat wiring for poor connections.

If not, then get a factory electrical diagram book and monitor the connectors further and further back to the power source. These wires tend to be bundled and are impossible to trace, thus the reason for the electrical diagram manual. This will tell you which harness(s) the wiring is in and show you the locations of various connectors / wiring for this circuit.

ScooterInMN · May 17, 2009

I'm guessing that it may be a loose connection since the problem comes and goes.

reiling3 · May 17, 2009

I'm going to assume that you already know this. But, the seat heaters won't work unless somebody is sitting in them. At least that's how mine are.

P71_CrownVic · May 18, 2009

I have an '05 with the leather heated seats. I have noticed an intermittent problem with the passenger seats heat not coming on. Anyone have any ideas or where to start looking?

Awe come-on...It is May...we won't need our headed seats for at least 3-4 months!!!

georgecdisc · May 18, 2009

Awe come-on...It is May...we won't need our headed seats for at least 3-4 months!!!

My drive to work today was 34 F. Of course I am used to not wearing a jacket anymore in the mornings. I didn't realize the temp. until I got in my truck and it said ICE. I was thinking, hmm, yea... okay. My windshield was frosted. In the spirit of looking forward to warmer weather I toughed it out in my polo for the first 5 minutes until I got heat.

ScooterInMN · May 18, 2009

I'm going to assume that you already know this. But, the seat heaters won't work unless somebody is sitting in them. At least that's how mine are.

I didn't know that.

So it could be either a loose connection or a faulty sensor. Would you know if the sensor is in the seat?

georgecdisc · May 18, 2009

So it could be either a loose connection or a faulty sensor. Would you know if the sensor is in the seat?

Probably the same sensor in the seat that detects if a person is there for airbag purposes. When there is no weight there, passenger air bag(s) turn off.

whaler · May 18, 2009

I have a bit of an issue as well?

In my last truck 2003 SLT the seats worked very well. In my 2007 SLT, very poor. Low heat as the 03 cooked your ass!

Any ideas?

P71_CrownVic · May 18, 2009

Awe come-on...It is May...we won't need our headed seats for at least 3-4 months!!!

My drive to work today was 34 F. Of course I am used to not wearing a jacket anymore in the mornings. I didn't realize the temp. until I got in my truck and it said ICE. I was thinking, hmm, yea... okay. My windshield was frosted. In the spirit of looking forward to warmer weather I toughed it out in my polo for the first 5 minutes until I got heat.

Must be global warming!

reiling3 · May 18, 2009

So it could be either a loose connection or a faulty sensor. Would you know if the sensor is in the seat?

Probably the same sensor in the seat that detects if a person is there for airbag purposes. When there is no weight there, passenger air bag(s) turn off.

chakis24 · May 19, 2009

I'm going to assume that you already know this. But, the seat heaters won't work unless somebody is sitting in them. At least that's how mine are.

I didn't know that.

So it could be either a loose connection or a faulty sensor. Would you know if the sensor is in the seat?

really? thats news to me. sometimes when im in a good mood i put the passenger seat heaters on before i pick up my girlfriend from work.

reiling3 · May 19, 2009

I'm going to assume that you already know this. But, the seat heaters won't work unless somebody is sitting in them. At least that's how mine are.

I didn't know that.

So it could be either a loose connection or a faulty sensor. Would you know if the sensor is in the seat?

really? thats news to me. sometimes when im in a good mood i put the passenger seat heaters on before i pick up my girlfriend from work.

I agree you can turn them on. The lights will light up and everything. But, they won't warm up until someone is sitting in them. I assume that it is a safety issue since mine get smokin' hot. I really wouldn't be surprised if they turned them down on the newer trucks.

ScooterInMN · May 20, 2009

I'm going to assume that you already know this. But, the seat heaters won't work unless somebody is sitting in them. At least that's how mine are.

I didn't know that.

So it could be either a loose connection or a faulty sensor. Would you know if the sensor is in the seat?

really? thats news to me. sometimes when im in a good mood i put the passenger seat heaters on before i pick up my girlfriend from work.

I agree you can turn them on. The lights will light up and everything. But, they won't warm up until someone is sitting in them. I assume that it is a safety issue since mine get smokin' hot. I really wouldn't be surprised if they turned them down on the newer trucks.

That tells me that the problem must be a loose connection. When the wife is sitting in the seat, the lights don't even come on. She can try a few minutes later and it works like a champ.